docs: def attach(self, gui):
          """Attach the view to the GUI."""
          super(CorrelogramView, self).attach(gui)
          self.actions.add(self.toggle_normalization, shortcut='n')
          self.actions.separator()
          self.actions.add(self.set_bin, alias='cb')
          self.actions.add(self.set_window, alias='cw')